413 lines
11 KiB
PHP
413 lines
11 KiB
PHP
<?php
|
|
|
|
/**
|
|
* ownCloud
|
|
*
|
|
* @author Frank Karlitschek
|
|
* @copyright 2010 Frank Karlitschek karlitschek@kde.org
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
|
|
* License as published by the Free Software Foundation; either
|
|
* version 3 of the License, or any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* Privde a common interface to all different storage options
|
|
*/
|
|
class OC_FILESTORAGE{
|
|
private $observers=array();
|
|
/**
|
|
* add an observer to the list
|
|
* @param OC_FILEOBERSER observer
|
|
*/
|
|
public function addObserver($observer){
|
|
$this->observers[]=$observer;
|
|
}
|
|
/**
|
|
* notify the observers about an action
|
|
* @param int action a combination of OC_FILEACTION_WRITE and OC_FILEACTION_READ
|
|
* @param string path relative path of the file
|
|
*/
|
|
public function notifyObservers($path,$action){
|
|
foreach($this->observers as $observer){
|
|
if($observer->mask & $action){
|
|
$observer->notify($path,$action,$this);
|
|
}
|
|
}
|
|
}
|
|
|
|
public function __construct($parameters){}
|
|
public function mkdir($path){}
|
|
public function rmdir($path){}
|
|
public function opendir($path){}
|
|
public function is_dir($path){}
|
|
public function is_file($path){}
|
|
public function stat($path){}
|
|
public function filetype($path){}
|
|
public function filesize($path){}
|
|
public function is_readable($path){}
|
|
public function is_writeable($path){}
|
|
public function file_exists($path){}
|
|
public function readfile($path){}
|
|
public function filectime($path){}
|
|
public function filemtime($path){}
|
|
public function fileatime($path){}
|
|
public function file_get_contents($path){}
|
|
public function file_put_contents($path,$data){}
|
|
public function unlink($path){}
|
|
public function rename($path1,$path2){}
|
|
public function copy($path1,$path2){}
|
|
public function fopen($path,$mode){}
|
|
public function toTmpFile($path){}//copy the file to a temporary file, used for cross-storage file actions
|
|
public function fromTmpFile($tmpPath,$path){}//copy a file from a temporary file, used for cross-storage file actions
|
|
public function getMimeType($path){}
|
|
public function delTree($path){}
|
|
public function find($path){}
|
|
public function getTree($path){}
|
|
}
|
|
|
|
|
|
OC_FILESYSTEM::registerStorageType('local','OC_FILESTORAGE_LOCAL',array('datadir'=>'string'));
|
|
/**
|
|
* for local filestore, we only have to map the paths
|
|
*/
|
|
class OC_FILESTORAGE_LOCAL extends OC_FILESTORAGE{
|
|
private $datadir;
|
|
public function __construct($arguments){
|
|
$this->datadir=$arguments['datadir'];
|
|
if(substr($this->datadir,-1)!=='/'){
|
|
$this->datadir.='/';
|
|
}
|
|
}
|
|
public function mkdir($path){
|
|
if($return=mkdir($this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_CREATE);
|
|
}
|
|
return $return;
|
|
}
|
|
public function rmdir($path){
|
|
if($return=rmdir($this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_DELETE);
|
|
}
|
|
return $return;
|
|
}
|
|
public function opendir($path){
|
|
if($return=opendir($this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_READ);
|
|
}
|
|
return $return;
|
|
}
|
|
public function is_dir($path){
|
|
return (is_dir($this->datadir.$path) or substr($path,-1)=='/');
|
|
}
|
|
public function is_file($path){
|
|
return is_file($this->datadir.$path);
|
|
}
|
|
public function stat($path){
|
|
return stat($this->datadir.$path);
|
|
}
|
|
public function filetype($path){
|
|
return filetype($this->datadir.$path);
|
|
}
|
|
public function filesize($path){
|
|
return filesize($this->datadir.$path);
|
|
}
|
|
public function is_readable($path){
|
|
return is_readable($this->datadir.$path);
|
|
}
|
|
public function is_writeable($path){
|
|
return is_writeable($this->datadir.$path);
|
|
}
|
|
public function file_exists($path){
|
|
return file_exists($this->datadir.$path);
|
|
}
|
|
public function readfile($path){
|
|
if($return=readfile($this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_READ);
|
|
}
|
|
return $return;
|
|
}
|
|
public function filectime($path){
|
|
return filectime($this->datadir.$path);
|
|
}
|
|
public function filemtime($path){
|
|
return filemtime($this->datadir.$path);
|
|
}
|
|
public function fileatime($path){
|
|
return fileatime($this->datadir.$path);
|
|
}
|
|
public function file_get_contents($path){
|
|
if($return=file_get_contents($this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_READ);
|
|
}
|
|
return $return;
|
|
}
|
|
public function file_put_contents($path,$data){
|
|
if($return=file_put_contents($this->datadir.$path,$data)){
|
|
$this->notifyObservers($path,OC_FILEACTION_WRITE);
|
|
}
|
|
}
|
|
public function unlink($path){
|
|
if($return=unlink($this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_DELETE);
|
|
}
|
|
return $return;
|
|
}
|
|
public function rename($path1,$path2){
|
|
if($return=rename($this->datadir.$path1,$this->datadir.$path2)){
|
|
$this->notifyObservers($path1.'->'.$path2,OC_FILEACTION_RENAME);
|
|
}
|
|
return $return;
|
|
}
|
|
public function copy($path1,$path2){
|
|
if($this->is_dir($path2)){
|
|
if(!$this->file_exists($path2)){
|
|
$this->mkdir($path2);
|
|
}
|
|
$source=substr($path1,strrpos($path1,'/')+1);
|
|
$path2.=$source;
|
|
}
|
|
if($return=copy($this->datadir.$path1,$this->datadir.$path2)){
|
|
$this->notifyObservers($path2,OC_FILEACTION_CREATE);
|
|
}
|
|
return $return;
|
|
}
|
|
public function fopen($path,$mode){
|
|
if($return=fopen($this->datadir.$path,$mode)){
|
|
switch($mode){
|
|
case 'r':
|
|
$this->notifyObservers($path,OC_FILEACTION_READ);
|
|
break;
|
|
case 'r+':
|
|
case 'w+':
|
|
case 'x+':
|
|
case 'a+':
|
|
$this->notifyObservers($path,OC_FILEACTION_READ | OC_FILEACTION_WRITE);
|
|
break;
|
|
case 'w':
|
|
case 'x':
|
|
case 'a':
|
|
$this->notifyObservers($path,OC_FILEACTION_WRITE);
|
|
break;
|
|
}
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
public function getMimeType($fspath){
|
|
if (@is_dir($this->datadir.$fspath)) {
|
|
// directories are easy
|
|
return "httpd/unix-directory";
|
|
}elseif (function_exists('finfo_open') and function_exists('finfo_file') and $finfo=finfo_open(FILEINFO_MIME)){
|
|
$mimeType =strtolower(finfo_file($finfo,$this->datadir.$fspath));
|
|
$mimeType=substr($mimeType,0,strpos($mimeType,';'));
|
|
finfo_close($finfo);
|
|
return $mimeType;
|
|
} else if (function_exists("mime_content_type")) {
|
|
// use mime magic extension if available
|
|
$mime_type = mime_content_type($this->datadir.$fspath);
|
|
} else if (self::canExecute("file")) {
|
|
// it looks like we have a 'file' command,
|
|
// lets see it it does have mime support
|
|
$fp = popen("file -i -b '{$this->datadir}$fspath' 2>/dev/null", "r");
|
|
$reply = fgets($fp);
|
|
pclose($fp);
|
|
|
|
//trim the character set from the end of the response
|
|
$mime_type=substr($reply,0,strrpos($reply,' '));
|
|
}
|
|
if (empty($mime_type)) {
|
|
// Fallback solution: try to guess the type by the file extension
|
|
// TODO: add more ...
|
|
switch (strtolower(strrchr(basename($fspath), "."))) {
|
|
case '.css':
|
|
$mime_type = 'text/css';
|
|
break;
|
|
case '.flac':
|
|
$mime_type = 'audio/flac';
|
|
break;
|
|
case '.gif':
|
|
$mime_type = 'image/gif';
|
|
break;
|
|
case '.gzip':
|
|
case '.gz':
|
|
$mime_type = 'application/x-gzip';
|
|
break;
|
|
case '.htm':
|
|
case '.html':
|
|
$mime_type = 'text/html';
|
|
break;
|
|
case '.jpeg':
|
|
case '.jpg':
|
|
$mime_type = 'image/jpeg';
|
|
break;
|
|
case '.js':
|
|
$mime_type = 'application/x-javascript';
|
|
break;
|
|
case '.oga':
|
|
case '.ogg':
|
|
$mime_type = 'audio/ogg';
|
|
break;
|
|
case '.ogv':
|
|
$mime_type = 'video/ogg';
|
|
break;
|
|
case '.pdf':
|
|
$mime_type = 'application/pdf';
|
|
break;
|
|
case '.png':
|
|
$mime_type = 'image/png';
|
|
break;
|
|
case '.svg':
|
|
$mime_type = 'image/svg+xml';
|
|
break;
|
|
case '.tar':
|
|
$mime_type = 'application/x-tar';
|
|
break;
|
|
case '.tgz':
|
|
$mime_type = 'application/x-compressed';
|
|
break;
|
|
case '.tif':
|
|
case '.tiff':
|
|
$mime_type = 'image/tiff';
|
|
break;
|
|
case '.txt':
|
|
$mime_type = 'text/plain';
|
|
break;
|
|
case '.zip':
|
|
$mime_type = 'application/zip';
|
|
break;
|
|
default:
|
|
$mime_type = 'application/octet-stream';
|
|
break;
|
|
}
|
|
}
|
|
|
|
return $mime_type;
|
|
}
|
|
|
|
/**
|
|
* detect if a given program is found in the search PATH
|
|
*
|
|
* helper function used by _mimetype() to detect if the
|
|
* external 'file' utility is available
|
|
*
|
|
* @param string program name
|
|
* @param string optional search path, defaults to $PATH
|
|
* @return bool true if executable program found in path
|
|
*/
|
|
private function canExecute($name, $path = false)
|
|
{
|
|
// path defaults to PATH from environment if not set
|
|
if ($path === false) {
|
|
$path = getenv("PATH");
|
|
}
|
|
|
|
// check method depends on operating system
|
|
if (!strncmp(PHP_OS, "WIN", 3)) {
|
|
// on Windows an appropriate COM or EXE file needs to exist
|
|
$exts = array(".exe", ".com");
|
|
$check_fn = "file_exists";
|
|
} else {
|
|
// anywhere else we look for an executable file of that name
|
|
$exts = array("");
|
|
$check_fn = "is_executable";
|
|
}
|
|
|
|
// now check the directories in the path for the program
|
|
foreach (explode(PATH_SEPARATOR, $path) as $dir) {
|
|
// skip invalid path entries
|
|
if (!file_exists($dir)) continue;
|
|
if (!is_dir($dir)) continue;
|
|
|
|
// and now look for the file
|
|
foreach ($exts as $ext) {
|
|
if ($check_fn("$dir/$name".$ext)) return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
public function toTmpFile($path){
|
|
$tmpFolder=sys_get_temp_dir();
|
|
$filename=tempnam($tmpFolder,'OC_TEMP_FILE_'.substr($path,strrpos($path,'.')));
|
|
if(copy($this->datadir.$path,$filename)){
|
|
$this->notifyObservers($path,OC_FILEACTION_READ);
|
|
return $filename;
|
|
}else{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function fromTmpFile($tmpFile,$path){
|
|
if(rename($tmpFile,$this->datadir.$path)){
|
|
$this->notifyObservers($path,OC_FILEACTION_CREATE);
|
|
return true;
|
|
}else{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
public function delTree($dir) {
|
|
$dirRelative=$dir;
|
|
$dir=$this->datadir.$dir;
|
|
if (!file_exists($dir)) return true;
|
|
if (!is_dir($dir) || is_link($dir)) return unlink($dir);
|
|
foreach (scandir($dir) as $item) {
|
|
if ($item == '.' || $item == '..') continue;
|
|
if(is_file($dir.'/'.$item)){
|
|
if(unlink($dir.'/'.$item)){
|
|
$this->notifyObservers($dir.'/'.$item,OC_FILEACTION_DELETE);
|
|
}
|
|
}elseif(is_dir($dir.'/'.$item)){
|
|
if (!$this->delTree($dirRelative. "/" . $item)){
|
|
return false;
|
|
};
|
|
}
|
|
}
|
|
if($return=rmdir($dir)){
|
|
$this->notifyObservers($dir,OC_FILEACTION_DELETE);
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
public function find($path){
|
|
$return=System::find($this->datadir.$path);
|
|
foreach($return as &$file){
|
|
$file=str_replace($file,$this->datadir,'');
|
|
}
|
|
return $return;
|
|
}
|
|
|
|
public function getTree($dir) {
|
|
if(substr($dir,-1,1)=='/'){
|
|
$dir=substr($dir,0,-1);
|
|
}
|
|
$tree=array();
|
|
$tree[]=$dir;
|
|
$dirRelative=$dir;
|
|
$dir=$this->datadir.$dir;
|
|
if (!file_exists($dir)) return true;
|
|
foreach (scandir($dir) as $item) {
|
|
if ($item == '.' || $item == '..') continue;
|
|
if(is_file($dir.'/'.$item)){
|
|
$tree[]=$dirRelative.'/'.$item;
|
|
}elseif(is_dir($dir.'/'.$item)){
|
|
if ($subTree=$this->getTree($dirRelative. "/" . $item)){
|
|
$tree=array_merge($tree,$subTree);
|
|
}
|
|
}
|
|
}
|
|
return $tree;
|
|
}
|
|
}
|
|
?>
|